Principal function controls tariff classification: hot mill blocker held outside handling and production headings, and placed in residuary category.

For tariff classification, the principal and essential function of machinery governs. The hot mill blocker's coiling operation was held to be more than mere lifting, handling, loading or unloading, so it did not fall under Heading 84.22. It also was not machinery designed for the production of a commodity or for treating metals, so it did not fall under Heading 84.59(2). As the equipment's real function was coiling hot rolled sheet before unloading, it was classified instead under the residuary Heading 84.59(1) as a mechanical appliance having an individual function.

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Issues: (i) Whether the hot mill blocker and ancillary equipment was classifiable under Heading 84.22 of the Customs Tariff Act, 1975 as lifting, handling, loading or unloading machinery; (ii) whether it was classifiable under Heading 84.59(2) of the Customs Tariff Act, 1975 as machinery designed for the production of a commodity.

Issue (i): Whether the hot mill blocker and ancillary equipment was classifiable under Heading 84.22 of the Customs Tariff Act, 1975 as lifting, handling, loading or unloading machinery.

Analysis: The blocker performed composite functions, but its principal function was coiling the long hot rolled sheet before unloading it on to the conveyor. Coiling was found to be more than mere handling. Heading 84.22 was treated as confined to machinery whose function is limited to lifting, handling, loading, unloading or conveying, without altering the form or shape of the material.

Conclusion: The blocker was not classifiable under Heading 84.22 and the claim under that heading failed.

Issue (ii): Whether the hot mill blocker and ancillary equipment was classifiable under Heading 84.59(2) of the Customs Tariff Act, 1975 as machinery designed for the production of a commodity.

Analysis: The blocker merely picked up the hot rolled sheet, coiled it and unloaded it on to the conveyor. It was not designed for the production of any commodity and was not machinery for treating metals. Its coiling function did not make it a production machine within Heading 84.59(2).

Conclusion: The blocker was not classifiable under Heading 84.59(2) and that alternative claim failed.

Final Conclusion: The equipment fell within the residuary description of Heading 84.59(1) as a mechanical appliance having an individual function, so the departmental assessment was upheld and the appeal failed.

Ratio Decidendi: For tariff classification, the principal and essential function of the machinery governs, and an appliance whose real function is coiling rather than mere handling or commodity production falls outside specific headings for handling machinery or production machinery and within the residuary heading for mechanical appliances having individual functions.

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